Originally Posted by
zetecbeast
.thanks for the help everyone!
Its a Fiesta RS1800 zetec engine, with stock alternator.
Will get the battery tested , but first Im going to retest all the stuff like current drain again tomorrow and will update then.
I don't have a clamp meter (yet) to test the dc current with engine running.
I have tightened the alternator belt up as it was a teeny bit slack, but not the problem I'm sure. After more research it could be the alternator is charging but also draining if the diode is faulty?
cheers
ps/ when its charged it turns the car over and it starts instantly. Doesn't seem to be underpowered going on ease of starting anway
As I say get the battery tested, if the battery has had it then it won't be able to hold a charge, hence after it's charged it's fine for a while, from what you have said so far I would say the charging system is ok and before you think it the fact it's not that old means nothing, if it's been deeply discharged a few times it will kill it!
The classic sign of a bad rectification is the battery light stays on when the ignition is switched off.
Martin